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  • Title: Activation of endothelial guanylate cyclase inhibits cellular reactivity.
    Author: Heller R, Bussolino F, Ghigo D, Pescarmona GP, Calvino R, Gasco A, Till U, Bosia A.
    Journal: Agents Actions Suppl; 1995; 45():177-81. PubMed ID: 7717176.
    Abstract:
    The study shows that endothelial cells from human umbilical veins have a soluble guanylate cyclase which can be activated by sodium nitroprusside (SNP), SIN-1 (3-morpholinosydnonimine) and S35b (4-methyl-3-phenylsulfonylfuroxan). Cells which were pretreated with these compounds showed an inhibition of thrombin-induced arachidonic acid release, PGI2 formation, PAF synthesis and PMNL adhesion. Endothelial guanylate cyclase can also be activated by nitric oxide (NO) which is generated in endothelial cells upon stimulation with thrombin or ionomycin. It is suggested that endogenously produced NO might control cell activation and endothelial function through a cGMP-dependent mechanism.
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